looking for a good graph algorithm package

[Jak Sprats <jaksprats@...>]

I need to add some graphDB like functionality to my DB: http://code.google.com/p/alchemydatabase/

(and BTW, thanks to this group for the previous help, I created a DocumentStore using Lua: http://code.google.com/p/alchemydatabase/wiki/LuaObject)

I have googled extensively, and the best package I can come up w/ is  luagems-graph (http://code.google.com/p/luagems-graph).

I can not find further documentation for luagems-graph, as the link to http://bluedino.net/writings/luads-gem.lua is broken

If this is the best package for graph traversals in Lua, I am happy to buy this book, anyone know of a pdf version online for sale?